原文 (英语)

CHAPTER I: PRELIMINARY Since it was the British complications with Persia which mainly furnished what pretext there was for the invasion of Afghanistan by an Anglo-Indian army in 1839, some brief recital is necessary of the relations between Great Britain and Persia prior to that aggression. By a treaty, concluded between England and Persia in 1814, the former state bound itself, in case of the invasion of Persia by any European nation, to aid the Shah either with troops from India or